R/C Tech Forums - View Single Post - 13.5 12th scale gearing snowbirds size track
Old 08-29-2018, 08:44 AM
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fermanracer
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Originally Posted by Slapmaster6000 View Post
Depends on your motor. A monster could be mid upper 80's. Tsr could be low 70's.
thanks I'm using an older tsr. . What's your suggestions on pinion range
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